Soundhack has announced that 64-bit versions of its plug-ins are ready for open beta testing. They are Universal Binaries which will do 64-bit Intel, 32-bit Intel and 32-bit PPC on OS X 10.5 to 10.8. Audio Unit and VST for Mac.
The download includes spectral shapers, pvoc kit, delay trio and the freesound bundle.
Windows 64-bit is in development.